Générique complet
Liz et Helen
Klaus Kinski
John Alexander
Christiane Krüger
Christine
Günther Stoll
Inspektor Steevens
Annabella Incontrera
Liz
Margaret Lee
Helen Alexander
Sydney Chaplin
Mr.Brown
Barbara Nelli
Alice
ID
Ignazio Dolce
CM
Carlo Marcolino
Servant
Gastone Pescucci
Peter
LS
Luciano Spadoni
Inspector Gordon
Claudio Trionfi
Bedy Moratti
(uncredited)
Fulvio Pellegrino
Policeman (uncredited)
Domenico Ravenna
Spectator at horse race (uncredited)
Alfred Vohrer
Edgar Wallace (voice) (archive footage) (uncredited)
Alice Arno
(hardcore inserts - French 1976 version)
Réalisation
Scénario
Edgar Wallace
Roman
GM
Gianbattista Mussetto
Histoire
PH
Paul Hengge
Scénario
RM
Romano Migliorini
Histoire
Lucio Fulci
Histoire
Riccardo Freda
Scénario
